<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>test</title>
</head>

<body>
    我是test页面
    <div>
        <iframe src="./test1.html" width="100%" height="300px" frameborder="1"></iframe>
    </div>
</body>

</html>